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A014993
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q-integers for q=-11.
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10
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1, -10, 111, -1220, 13421, -147630, 1623931, -17863240, 196495641, -2161452050, 23775972551, -261535698060, 2876892678661, -31645819465270, 348104014117971, -3829144155297680, 42120585708274481
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n) = a(n-1) + q^{(n-1)} = {(q^n - 1) / (q - 1)}
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MAPLE
| a:=n->sum ((-11)^j, j=0..n): seq(a(n), n=0..25); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 16 2008]
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PROG
| (Other) sage: [gaussian_binomial(n, 1, -11) for n in xrange(1, 18)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 28 2009]
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CROSSREFS
| A077925, A014983, A014985, A014986, A014987, A014989, A014990, A014991, A014992, A014994 [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Dec 16 2008]
Sequence in context: A087545 A078252 * A015592 A122574 A176736 A084031
Adjacent sequences: A014990 A014991 A014992 * A014994 A014995 A014996
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KEYWORD
| sign,easy
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AUTHOR
| Olivier Gerard (olivier.gerard(AT)gmail.com)
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